Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio tumidus

nominal species Unio macrorhynchus Borcherding, 1889

Unio macrorhynchus Borcherding, 1889 = Unio tumidus

(homonym of Unio macrorhynchus Bourguignat in Locard, 1882; renamed Unio borcherdingi Bourguignat in Locard, 1889)
Borcherding, 1889. Abh. Naturw. Ver. Bremen 10: 342, pl. 4, figs. 3-3b.
LECTOTYPE SMF_XXXX (by Zilch, 1967: 81), Dümmer See, Germany.

Taxonomic Opinions

+ Unio tumidus Philipsson, 1788 — Nagel, 2025: 96.

paralectotypes SMF 3702/3 — Germany, “Dümmer See” [52°30’N 008°20’E] (coll. H. von Ihering ex W. Kobelt, leg. F. Borcherding)

paralectotypes SMF 18674/2 (coll. W. Kobelt, leg. F. Borcherding)

+ Unio tumidus tumidus Retzius — Haas, 1969: 21.

+ Unio borcherdingi (Bgt.) Locard, 1889 — Westerlund, 1890: 169.

+ Unio borcherdingi Bourguignat — Kobelt, 1890: 95.

+ Unio (Villœana) [sic] borcherdingi Bourguignat — Locard, 1889: 153.